Flight 180 (first known as 180 or One Eighty) was an American Christian ska band, with punk and swing influences, from Orange County, California. Fronted by Kim Tennberg, singer and songwriter, they f
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc6d2eff2891834cf13b01ffbaaa982a474029aa7191395b8ce7384210a1898. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/588d3ac5-1b2f-4e63-8895-c23b452e04e7.json and https://artists.proofprofile.net/proofs/artist/588d3ac5-1b2f-4e63-8895-c23b452e04e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).